What the fuck have you smoken. Why would you ever need a lightweight headset? Do you have a neck made for babies? Either you buy good sound& comfortable headset + external mic. Or you buy a good headset with mic good sound and is comfortable.
Also, Hyperx Stinger, 275 grams.
Hyperx stinger is one of the first headsets made by hyperx. I have and still am using it. i have tried newer and more expensive headset from other companies (even without mic), and i still cannot match the same comfort and quality.